Research Article
Numerical Investigation on the Effect of Reinforcement Shear Connectors in Load Bearing Capacity of Partially Encased Composite Beams
@INPROCEEDINGS{10.1007/978-3-030-93712-6_6, author={Tamirat Semu Yihune and Temesgen Wondimu Aure and Belay Worku Ayele}, title={Numerical Investigation on the Effect of Reinforcement Shear Connectors in Load Bearing Capacity of Partially Encased Composite Beams}, proceedings={Advances of Science and Technology. 9th EAI International Conference, ICAST 2021, Hybrid Event, Bahir Dar, Ethiopia, August 27--29, 2021, Proceedings, Part II}, proceedings_a={ICAST PART 2}, year={2022}, month={1}, keywords={Composite beam Headed stud Reinforcement shear connector Load bearing capacity}, doi={10.1007/978-3-030-93712-6_6} }- Tamirat Semu Yihune
Temesgen Wondimu Aure
Belay Worku Ayele
Year: 2022
Numerical Investigation on the Effect of Reinforcement Shear Connectors in Load Bearing Capacity of Partially Encased Composite Beams
ICAST PART 2
Springer
DOI: 10.1007/978-3-030-93712-6_6
Abstract
The efficient use and combination of the compressive strength of the concrete and the tensile strength of the structural steel create a high-quality solid composite material. However, the loose bond between the two materials has a huge negative effect by lowering the bending capacity unless connectors are introduced. Even if headed stud shear connectors are commonly used in the construction sector, the present study investigated the load-bearing capacity of partially encased composite beams through the replacement of the head studs with T shaped reinforcement shear connectors. Three-point loading with displacement control analysis had been performed numerically. The length of the flange, the height of the web and the location of the shear connections were considered key parameters. Among the parameters, the increased flange of the shear connector improved the tensile behavior of the concrete through the formation of adhesion. On the other hand, the intermediate web height showed a positive result to confine the concrete with the equivalent bond formation with the structural steel. For general composite beams, slip and concrete cracking increase away from the neutral axis which reduces the load-bearing capacity of the composite beams. Hence, lowering the shear connector’s location to the bottom flange reduced the slip. As a result, the capacity of the composite beam was improved by creating an efficient anchorage with the shear connector, which increased the stiffness of the composite beam.
